Valve controlling means fob liquid



W.- L. MARDEN Oct. 8, 1935.

VALVE CONTROLLING MEANS FOR LIQUID DISPENSING SYSTEMS Filed Dec. 1, 1933 INVENTOR mliiam LMw'dem BY z ,1

ATTORNEYS Patented Oct. 8, .5

TED sures PATENT OFFICE 1 2,016,887 vanvn comouma mums roir uqur'o msrnusnvd srs'rnms William L. Mai-den, Jackson Heights, N. 13 assignor to Neptune Meter Company, a. comration of New Jersey Application December 1,'19as, Serial No. 106,48:

. 11 Claims. (01. 137-69' This invention relates to valve controlling means and particularly to means for controlling a valve associated withsa pump for dispensin of the pipe through which gasoline is withdrawn.

{Inasmuch as gasoline frequently contains a certain amount of water, which being of higher speciflc gravity settles to the bottom of the storage tank and accumulates over a period of time, it is also desirable to prevent the discharge of water by the dispensing pump. Therefore, it is an object of the present invention to prevent discharge of air or water from a gasoline storage tank by a dispensing pump.

One feature of the present invention is the provision of a valve associated with the discharge pipe from a gasoline storage tank and its control to permit suction between the pump and tank when the gasoline line is above the inlet of the discharge pipe and to cut off suction and prevent discharge of air by the pump when the gasoline level falls below the inlet.

A second feature resides to cut ofl O suction between the "dispensing pump and storage tank for preventing the undesired discharge of water accumulated in thetank.

Another feature resides in means for controlling the valve to prevent discharge of' water although the gasoline level may be above the inlet oi' the discharge pipe. In the drawing: figure 1 is an elevational view, partly in section and'partly broken away, showing a dispensing pump and storage tank embodying the present invention; Figure 2 is an enlarged elevational view of va portion of Figure means; and

Figure 3 is bottom plan view of part of the control me shown in Figure 2.

In the drawing, the numeral I flesignatesa cbnventionaldispensing pump of the suction type for withdrawing gasoline from a storage tank II I2. Pipe l2 extends into the tank -and ha'sitsinlet end positioned above the bottom gasoline "level is above the inlet end of pipe I2 valve I3 is normally held open to permit the withydrawal of gasoline and when the liquid level in the provision of means for controlling the above mentioned valve 1 showing the valve control customers or interference As. there. are

stored in the tank so long as its level does not fall below the inlet end 0 the pipe.

A valve I3 is provided or'controlling suction .betweenthe'interior of'tank III and pipe I2. m

the form shown, valve I3 comprises a cap carried by a lever I4 pivotally mounted at I5 on a bracket or lug I6 adjacent the inlet end of pipe I2 and provided with a float member I! adapted to float in gasoline. With this arrangement, when the falls below the inlet of the pipe I 2 the float member. I1 acts to close valve I3, thus preventing the discharge of air by pump III and the improper operation of the registering mechanism I8 thereof.

' Levers having portions straddling the end' of pipe I I are also pivoted at I5 and support a float ,2 I which sinks in gasoline and floats'in waters Levers 20 extend beyond pivot I5 and carry a stud 22 engageable with lever I4 to operate the latter for closing valve I3. Float 20 acts to cause closing of valve Iiin the event that water accumulates in tank II and-rises to such a level that there is danger of pump I0 discharging water in 25 stead of gasoline, the relations of the floats I'I, 2i and "their-levers I4, 20 being such that the buoyancy of float II may-be overcome although the gasoline level is above the inner end of pipe I I. In the foregoing the invention with particular reference to its application in dispensing gasoline. It is to be understood that the invention has other applications and may be applied whereverit is desired to dispense a liquid by pump means or otherwise from 5 "a storage space wherein are present one or more other liquids that are non-miscible therewith and diiifer therefrom in their specific gravities.

From the foregoing description it will be seen that the valve and its controlling mechanism 40 which I have provided are eilective to insure that only gasoline will be discharged by the dispensing pump and that neither air nor water may be discharged to cause dissatisfaction on the part of the pump registering devices as an indication of sales. 1

' manychanges and variations which may be made in the form of the invention without departing from-the spirit thereof, it 50 is intended to include all such changes and-variations within the scope of the invention.

I claim: g 1.-In a liquid-dispensing system including a .gasolinestorage tank, a suction pump, and a description I have described 30 with the accuracy of .2 sponsor permit the withdrawal gasoline whm the level thereof is above said inlet; and means responsive to the presence of water inlsaid tank operating id to close said valve when water accumulating in said tank rises to a determined level;

In a liquid-dispensing system including a gasoline storage tank; a suction pump, and a .pipe connected'to said pump. and extending into 115 said tank with its inlet above the bottom of the tter for withdrawing liquid "therefrom; a valve operable for controlling e oi" liquid through said pipe; means responsive to the presence 0! gasoline in said tank Ior opening said valve to so permit the withdrawal of gasoline when the level thereof is above said inlet; means responsive to the presence of water in said tank operating to close said valve when water accumulating in said tank rises to a determined level; and 2 means controlled by said last mentioned means for rendering said first mentioned means ineffective to open said valve although the gasoline level be above said inlet.

3. In a liquid-dispensing system. including a 30 gasoline storage tank, a suction pump, and a pipe connected to said pump and extending into said tank with its inlet above the bottom oi the latter'ior withdrawing liquid therefrom; a valve .ior controlling passage oi liquid through said 5 pipe; a lever for operating said valve; a float carried by said lever and responsive to the presence of gasoline in said tank at a level above said inlet for operating said lever to open said valve; a second lever for operating said valve; and a float 4o carried by said second lever and responsive to accumulation of water at the bottom of said tank at a determined level ior'sctustlng said second lever to close said valve. I q

4. In a liquid-dispensing systenr including a 45 gasoline storage tank, a suction pump, and a pipe connected to said pump and ektending into said tank with its inlet above-the bottom or the latter for withdrawing liquid therefrom; a valve for controlling passage of liquid through said I so pipe; a lever for operating said valve: a float Q olosesaid valve. 5. In a liquid-dispensing system including a asoline storage tank, a' suction pump. and a pipe connected to said pump and extending into said tank with its inlet above the bottom of the latter for withdrawing liquid therefrom; a valve for controlling passage or liquid through said pipe; a lever for operating said valve; a float carried by said lever and responsive to" the pres- 70 ence of gasoline in said tank at a level above said inlet for operating said lever to open said valve:

a second lever ior operating said valve; a float carried by said second lever'and responsive to accumulation oiLwater at the bottom of said tank 75 at a determined level for actuating said second lever to close said valve; and means associated withsaid second lever and operative on actuation thereof to operate said first lever to overcome the buoyancy or itsnfloat to enable closing of said valve despite the presence of gasoline at a level 5 above said inlet.

6. in a liquid-dispensing system including a tank containing non-miscible liquids'oi diflering specific gravities, a pipe for withdrawing liquid from said tank with its inlet above the bottom 0! 10 the latter, and a valve for controlling passage of liquid through said pipe; means responsive to the presence of a liquid of determined specific gravity for opening said valve when said liquid is present in said tank at a level above the ini5 let to said pipe; and means responsive to the presence or a liquid of higher specific gravity tor closing said valve when the latter liquid acstimulates at the bottom of said tank at a determined level.

' 7. In a liquid-dispensing system including a tank for storing liquids, a pump for, dispensing a liquid therefrom, a pipe connected to said pump and extending into said tank with its inlet above the bottom of said tank ior withdrawing fluid thereirom, and a valve for controlling passage of liquid through said pipe; means responsive to the presence of a liquid of determined specific gravity for opening said valve when said liquid is present in said tank, at a level above the inlet to said pipe; means responsive to the presence 01 a liquid oi higher specific gravity in said tank for closing said valve when said later liquid accummulates at the bottom of said tank at a determined level; and means controlled by said 85 last-mentioned means for rendering said firstmentioned means inefiective to open said valve desplte'the presence of said first-mentioned liquid at a level above said inlet.

8. In a liquid-dispensing system including a 40 tank containing non-miscible liquids of diilering specific gravities, a suction pump, and a pipe connected to said pump and extending into said tank with its inlet above the bottom of the latter for withdrawing liquid therefrom; a valve for controlling passage of liquid through said pipe, 9. lever for operating said valve; a float carried by said lever and responsive to the presence of a liquid 0! determined specific gravity in said tank at a level abovesaid inlet for operating said lever 0 to open said valve; a second lever; a float carried by said second lever and responsive to the presence of a liquid 01' higher specific gravity in said f tank tor actuating said second lever when said last mentioned liquid accumulates at a deter- 5'5 mined level at the bottom of said tank; and means associated with said second lever and adapted on actuation thereof to operate said first-mentioned lever to overcome the buoyancy oi! its float and close said valve for preventing discharge of said so; last-mentioned liquid by said pump.

9. In a liquid-dispensing system including a conduit connected to a liquid storage tank, a valve controlling the passage or liquid through said conduit, a lever connected to said valve for operatg5 ing the latter anda liquid responsive float for actuating said lever; a second lever, operatively connected to said valve; and a float carried by said second lever for actuating the latter to close said valve in response to the presence at a determined level in said tank or a liquid of higher speciflctr gravity than that intended to bestored therein.

10. In combination with a valve controlling the I outlet of atank containing non-miscible liquids of diilerent specific. gravities. a lever operativelytrconnected to said valve. a. pivot for said lever, and a float carried by said lever and responsive to the presence in said tank at a level above said outlet of a liquid of determined specific gravity for operating said lever to open said valve; a second lever mounted on said pivot; a fioat carried by said second lever and responsive to the presence at a determined level in said tank of liquid or higher specific gravity for actuating said second lever; and means operatively connecting said second lever to said first lever for simultaneously actuating the latter to close said valve regardless of the level in said tank of liquid of said determined specific gravity.

11. In combination with a valve controlling the outlet of a tank containing non-miscible liquids of different specific gravities, a lever operatively eonnectedtosaidvalvempivotiorsaidlevenand a fioat carried by said lever and responsive to the presence in said tank at a level above said outlet of a liquid 0! determined specific gravity for operating said lever to open said valve: a second lever mounted on said pivot: a fioat carried by said second lever and responsive to the presence at a determined level in said tank oi liquid of higher specific gravity for actuating said second lever; and means carried by saidsecond lever adapted on actuation thereo! to engage said first lever and actuate the latter tor closing said valve despite the presence in said tank at a level above said outlet of liquid of said determined specific gravity WILLIAM- L. HARDER 

